Comment by zokier
But it's all relative, all reference frames are different and relative from each other and there is no one reference frame that is somehow special. TBD runs unevenly relative to UTC as much as UTC runs unevenly relative to TBD.
But it's all relative, all reference frames are different and relative from each other and there is no one reference frame that is somehow special. TBD runs unevenly relative to UTC as much as UTC runs unevenly relative to TBD.
Absolutely, I completely agree. Einstein has taught you well. ;) The only thing that matters is choosing the right reference frame for the job.
When high accuracy is required, UTC is not the right reference frame for the job of astronomical calculations. That's all.